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Updated: May 8, 2026

Streamlined Purification of Plasmid DNA From Prokaryotic Cultures
Published on: January 5, 2011
Isolation of plasmid DNA from bacteria
1Ear Institute, University College London, London, United Kingdom.
Abstract:
The purpose of this protocol is the isolation of plasmid DNA from bacteria. The boiling method for isolating plasmids by Holmes and Quigley (1981) is presented here. This method is rapid and simple and it allows for a large number of samples to be processed simultaneously (up to 40 samples). Thus, it is appropriate for the preparation of bacterial plasmids in order to screen a large number of colonies or small cultures for the presence of recombinant DNA inserts. The protocol can be effectively scaled up for the preparation of plasmids from liter cultures.
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